t / t4013 / diff.diff-tree_--root_-r_--abbrev_initialon commit git: treat "git -C '<path>'" as a no-op when <path> is empty (6a536e2)
   1$ git diff-tree --root -r --abbrev initial
   2444ac553ac7612cc88969031b02b3767fb8a353a
   3:000000 100644 0000000... 35d242b... A  dir/sub
   4:000000 100644 0000000... 01e79c3... A  file0
   5:000000 100644 0000000... 01e79c3... A  file2
   6$